Iron-body cock.



P. MUELLER.

IRON BODY GOGK.

APPLICATION rum) MAR. 28, 1911.

1,002,428, Patented Sept. v5, 1911.

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P. MUELLER.

IRON BODY 000K.

APPLICATION rum) nun. 28,1011.

1,002,428. Patented Sept. 5,1911.

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Witne s 5 es Inventor Ph 1, Mueller 1 211L330 P UNITED STATES PATENTOFFICE- PHILIP MUELLER, OF DECATUR, ILLINOIS, ASSIGNOR IO I-I. MUELLERMANUFACTUR- INGr COMPANY, OF DECATUR, ILLINOIS, A CORPORATION OFILLINOIS.

IRON-BODY COCK.

Specification of Letters Patent.

Application filed March 28, 1911.

To all whom it may concern:

Be it known that I, PHILIP MUELLER, a citizen of the United States,residing at Decatur, in the county of Macon and State of Illinois, haveinvented new and useful Improvements in Iron-Body Cocks, of which thefollowing is a specification.

This invention relates to ground-key cocks, being directed particularlyto the turning plugs used in such cocks.

The object of the invention is to improve the turning plugs of cocks ofvarious kinds, especially the plugs of gas service cocks by making thebody of the plug hollow or chambered, the bottom of the chamber being inline with the inlet and outlet openings of the cock body or casing, andforming openings through the wall of the plug body into the chamber forthe passage therethrough of liquids and gases, which openings extenddownwardly only as far as the bottom of said plug chamber.

A further object of the invention is to lighten and cheapen the plugs,especially in large cocks, which are made usually of brass, by coringout that portion of said plugs below the chamber which are made long togive a steady bearing in the cockbody.

Figure 1 is a vertical longitudinal sectional view of one form ofturning plug; Fig. 2 is a similar view taken at a right angle to Fig. 1,a portion of the cock body or casing being shown in dotted lines; Fig. 3is a view similar to Fig. 1 illustrating a modified form of turningplug; Fig. 4c is a sectional view on line 44: of Fig. 3, and Fig. 5 is abottom plan view of the plug represented by Fig. 3.

In the drawings, the numeral 10 indicates the plug, in the presentinstance having a slight longitudinal taper toward its lower end andformed with a central chamber 11, the walls of which are relativelythin. The floor 12 of said chamber is flat and on a line with the bottomof the through passage 13 in the casing 14: as clearly shown in Fig. 2.The top of the chamber 11 extends nearly to the top of the plug. Throughthe walls of the plug 10 are made oppositely disposed openings 15 withdownwardly tapered sides 16 and curved tops and bottoms 17 flush withand curved on the same radius as the through passage 13 in the casing14.

Below the floor 12 of the chamber 15 in the preferred form of theinvention, (see Figs. 1 and 2) a cavity 18 is formed in the plug 10 withopenings 19 leading therefrom outwardly, which cavity and the chamber 11reduces the plug to a mere shell, decreases its weight and saves metalwithout lessening the necessary strength demanded of it. The plug 10terminates in a screw stem 20 for a fastening nut 21, between which andthe base of the'plug is a washer 22 engaging a shoulder or collar 23having a flat side 24 fitting an opening'of similar shape in said washerwhich turns with the plug.

The modified form of turning plug, illustrated in Fig. 3, has in placeof the inclosed cavity 18, an open bottomed cavity 18 made by extendingdownwardly, the sides of the plug from the floor 12 in the form of askirt 25, below which is the shoulder or collar 23, as in the preferredvform, connected by a cruciform shank 26 with the bottom of the lug. Thetop of the plug is provided with a head 27 which may be flat andperforated as shown, square, or of other polygonal form, or made with asocket.

It is to be understood that the openings 15 through the walls of theplug 10 are not to be confined to the form shown but may be maderectangular, circular, elliptical or of any other desired shape providedthe bottom of said openings lie in a plane with the floor of the chamber11, and in line with the walls of the passage-ways in the body of thecock so as to prevent accumulation within the key, as is common withcocks of this character used in gas works, where the gas tar collects inkeys of that type which have a well or cavity that extends below thebottom of the outward openings and the passages in the body of the cock.'It is also desirable that said openings in the wall of the cock shallconform to the shape of the openings in the body of the cock throughwhich the fluid passes.

What I claim is 1. In a ground-key cook, a hollow tapered turning plughaving a relatively thin wall and an imperforate flat floor at a rightangle to the axis of the plug, said wall being formed with fluidopenings therethrough of less height and width than the chamber in saidplug, said openings having flat sides and curved tops and bottoms on thesame radius as the fluid passages of the cock body into which said plugis adapted to fit, the bottoms of the fluid passages being in line withthe floor of the chamber in the plug.

2. In a ground-key cook, a turning key therefor comprising a taperedbody reduced to a shell by chambering its upper portion and'forming acavity in its lower end open at the bottom, said chamber having a flatfloor in line with the bottoms of the fluid passages in the cock,oppositely disposed openings through the walls of the plug leading tosaid chamber, the tops and bottoms of said openings being curved andcoinciding with said fluid passages, said lower cavity being open at thebottom, a cruciform shank depending from the floor of the chamberthrough the open cavity, screw threaded at its lower end and providedwith a flat sided collar to receive a Washer.

3. In a ground-key cock, 'a hollow tapered turning plug having arelatively thin wall and a transverse imperforate partition dividingsaid plug into an upper chamber and a lowei cavity open at the bottom,said partition forming a flat floor for said chamber at a right angle tothe axis of said turning plug, fluid openings in said wall of lessheight and width than the chamber in said plug and having flat sideswith their tops and bottoms curved on the same radius as the fluidpassages of the cock body into which said plug is adapted to fit, thebottoms of the fluid passages being in line with the floor of thechamber in the plug.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

PHILIP MUELLER.

Witnesses:

LEONARD F. MoKIBBEN, WILLIAM R. Brooms.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

